The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 07, 2020
Filed:
Dec. 28, 2015
Applicant:
Emc Ip Holding Company Llc, Hopkinton, MA (US);
Inventors:
Philippe Armangau, Acton, MA (US);
Jean-Pierre Bono, Westborough, MA (US);
Christopher A. Seibel, Walpole, MA (US);
Assignee:
EMC IP Holding Company LLC, Hopkinton, MA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F 16/174 (2019.01); G06F 16/13 (2019.01);
U.S. Cl.
CPC ...
G06F 16/1752 (2019.01); G06F 16/137 (2019.01); G06F 16/1744 (2019.01);
Abstract
A technique for performing deduplication on compressed data in a file system operates inline with storage requests, e.g., prior to writing compressed data specified in those storage requests to persistent file system structures. As requests to write data arrive, the file system compares those data with data already stored in the file system. If a match is found, metadata structures are written but compression and file system storage of the newly arrived data is avoided.